lgo51 Posted July 17, 2006 Share Posted July 17, 2006 Hello, Just scored a pair of 80's vintage bookshelf speakers that totally baffle my attempts to identify them. They measure 19"h x 13.25"w x 10.75"d (sans grills), sport a K-8-K woofer and a K-71-H dome tweeter (wood grain looking dome) with a Type KG crossover network. The cabnets are sealed. The dimensions and XO suggest a KG2... but there's no passive radiator and the woofer isn't a K-9-K and the tweeter isn't a K-72-K. So... question #1 is; What the heck are these? Also, saddly, one of the woofers took a hit sometime in the past and has a crack in the poly part of the cone. It does not extend all the way across the poly's radius, and the surround is undamaged. I'm hoping to be able to 'glue' it together as a temporary repair. Question #2; What's the recommended 'glue' for this task - epoxy? Quote Link to comment Share on other sites More sharing options...
johnyholiday Posted July 17, 2006 Share Posted July 17, 2006 Early kg2 had, no passive radiator Quote Link to comment Share on other sites More sharing options...
lgo51 Posted July 17, 2006 Author Share Posted July 17, 2006 Early kg2 had, no passive radiatorThat's cool... any idea where one might find a data sheet? Quote Link to comment Share on other sites More sharing options...
Arky Posted July 17, 2006 Share Posted July 17, 2006 The specs can be found at the top of the home page. The products link - discontinued - bookshelf. Quote Link to comment Share on other sites More sharing options...
lgo51 Posted July 17, 2006 Author Share Posted July 17, 2006 The specs can be found at the top of the home page. The products link - discontinued - bookshelf. One would think so, but alas the only entry is for the other KG2 - the one with the passive radiator. Combed through all 28 pages just to be sure [] Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted July 17, 2006 Share Posted July 17, 2006 cracks in woofer material can be mended with fingernail polish, clear preferred. I remove the woofer, dab a slight amount on the tear on the back side, wait to dry, dab second coat. We used to use this with PA speakers that seemed to get abused regularly, but I've used this on the KG poly woofers with good results. Tears in the suspension can be mended with RTV silicone or Weldbond adhesive. Michael Quote Link to comment Share on other sites More sharing options...
DrWho Posted July 18, 2006 Share Posted July 18, 2006 And if the tear is really bad, you can reinforce with some paper towel and be generous with the glue. The glue bonds with the paper and creates a sort of splint that also attaches to the surface you're trying to fix. Quote Link to comment Share on other sites More sharing options...
lgo51 Posted July 18, 2006 Author Share Posted July 18, 2006 Thanks all for the suggestions! Since neither my wife nor I use nail polish that option wasn't convenient. That left duct tape or epoxy. While the former has a certain DIY appeal , the later was handy and seemed most similar to the nail polish concept. Happen to have a clear, quick setting variety on the shelf so even the cosmetics worked out [H]. A thin layer applied to the backside of the cone, flowing across the crack to create a smooth, thin 'puddle' worked beautifully. Driver's re-installed and warming up as I type [] Now all I need are some specs for the K-71-H tweeter [:'(] Regards to all... Quote Link to comment Share on other sites More sharing options...
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